Red Army troops from Soviet Russia, led by Mikhail Frunze, attack Bukhara, capital of the Emirate of Bukhara, with the support of Young Bukharan activists. On 31 August, Emir Alim Khan flees to Dushanbe in eastern Bukhara, where a rival Emirate is set up. The Emir’s citadel in Bukhara falls to the Red Army two days later, leading to the proclamation of the Bukharan People’s Soviet Republic the following month.in wikipedia

The Soviet Eleventh Army invades Armenia, declaring the Armenian Soviet Socialist Republic. The Armenian government, currently negotiating peace with Turkey, falls 5 days later when the Red Army reaches Yerevan.in wikipedia